Boundry Scanning Help

Hi all,

these days im trying to perform a boundry scanning on stm32 board. i refered about svf formats and jtag functionalities. but i have a question. When i excute the svf file from openocd some cases svf file is properly programmed. some cases it says “Programming fail” how can we view the TDO output from the openocd? if any one have a tutorial on this please help me. i m not be able to describe the problem well…im in a mess.Thanks

Nuwan